Python Wait Spinner

gistfile1.txt

#! /usr/bin/env python3

import sys
import time

def main():

    spinner = Spinner()
    for x in range(20):
        time.sleep(0.2)
        spinner.update()
    spinner.done()

class Spinner:
    HIDE_CURSOR = '\x1b[?25l'
    SHOW_CURSOR = '\x1b[?25h'
    #_phases = ['⎺', '⎻', '⎼', '⎽', '⎼', '⎻']
    _phases = ['•••  ', ' ••• ', '  •••', '•  ••', '••  •']
    _status = 0
    _spinner_length = 5

    def __init__(self):
        sys.stdout.write(self.HIDE_CURSOR)
        sys.stdout.flush()

    def update(self):
        new_status = self._phases[self._status]
        sys.stdout.write('\b' * self._spinner_length)
        sys.stdout.write(new_status)
        sys.stdout.flush()
        if self._status == len(self._phases) - 1:
            self._status = 0
        else:
            self._status += 1

    def done(self):
        sys.stdout.write('\b' * self._spinner_length)
        sys.stdout.write(' ' * self._spinner_length)
        sys.stdout.write('\b' * self._spinner_length)
        sys.stdout.write(self.SHOW_CURSOR)
        sys.stdout.flush()



if __name__ == '__main__':
    main()